<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
    <script src="js/common.js" charset="utf-8"></script>
    <script>
    let json={};

    for(let i=0;i<10000;i++){
      let n=rnd(1, 10);

      if(json[n]){
        json[n]++;;
      }else{
        json[n]=1;
      }
    }

    console.log(json);
    </script>
  </head>
  <body>

  </body>
</html>
